Now, at long last, the world of Islamic numismatics has been provided with a
comprehensive compilation and guide to the first period of Islamic gold coinage
from the time of the Umayyad caliph ‘Abd al-Malik bin Marwn until the deposition
of the Abbasid caliph al-Mustakfi in 334 Hijra (946 CE).Robert
Darley-Doran